Portable electric lamp.



E. 5. WGWNMGG", HENDERSON 84 A. E. CASE,

PGBTABLE ELECTRIC LAMP.

APPLICATION FILED MAY 3. 1915.

m m: Ro m .up m t 2 J. J. BROWNRIGG, H. HENDERSON & AfE. CASE. PORTABLE memo LAMP.

APPLICATION FILED MAY 3, I915- 1 %5O 96O. Patented Dec. 25 191? 2 SHEETS-SHEVET 2.

s GEM- 93s.

JOHN J. BROWNRIGG, HARRY HENDERSON, .ANFJ AETHUE E. CASE, OF MAB/1 131? I INDIANA, ASSIGNGIRS T DELTA ELE A. 'CGBPOBATION 0F INDIAXA.

CTRIC QOMlAINY, OF MARION, INDIANA,

PORTABLE} ELECTRIC LAMP.

Specification of Letters Patent, Pa'ijentgd Dec 25 Application filed May B, 1915. Serial No. 251,387.

- 1/ '0 all whom it may concern.-

Be it known that we, JOHN J. BROWN- iueo, HARRY HEnnEnsoN, and ARTHUR E. Cass, residents of Marion, in the county of Grant and State of Indiana, respectively, have invented new and useful Improvements in ?ortable Electric Lamps, of which the following is a full, clear, and exact description. v p

The invention relates to portable electric lamps, and more particularly to lamps adapted for use on vehicles, such bicycles or motorcycles.

One object of the invention is to provide an improved portable electric lamp and holder which are adapted for attachment to one part of the vehicle, and a battery holder which is adapted to be attached to another part. with fleXibl-e electric connections l'ietvveen the lamp holder and a dry battery in said battery holder.

A further object of the invention is to provide simple and efficient means for closing and breaking the lamp circuit, particuarly adapted for use on vehicles where the lamp and connections therefor are subjected to vibration. k 9

A further object of the invention is to provide an improved portable electric lamp and holder which is simple in construction and can be produced at a. low cost.

The invention consists in the several novel features hereinafter Set forth and more particularly defined by claims at the conclusion hereof. V

In the drawings: Figure 1 is a side elevation of a device embodying the invention and applied to a bicycle. Fig. 2 is a section taken on line of Fig. 1. Fig. 3 is a longitudinal section, through the battery box and the lamp holder. Fig. i is a front view of the rearportion of the box containing the electrical connections for the lamp. Fig. 5 isan enlarged section showing the switch screw in the position assumed when the lamp circuit is broken.

The improved device comprises a box 15 for containing a dry battery having poles 11 and 12 at one end thereof. This battery is usually provided with an insulatingjacket l4 and the box 15 has one ofits ends open to permit ccess to and removal of the battery from the box. The open end of this box is closed by a. cap or co er 16. Flexible conduc ors 1'7 and 18 extend through a sleeve l9 of insulating inateriahwhich issecured in the cap'. The inner' face of the 'cap'is covered by a disk 20 of insulating material to prevent a short circuit in event'the battery slips forward to the front end of the box. The flexible conductors 17 and '18 are each provided witha suitable metallic terminal 21 adapted to be secured to the poles of the battery, respectively, by screws 25% The battery box is secured to 01 the frame'bars of the bicycle by pair of clamps '24. Each of these clamps comprises a pair of members 25 having their upper portions curved to engage the opposite sides .of the frame bar and their lower portions formed to extend'around the battery-box, and 5. screw '26 for forcing the jaws together to clamp the iramebar and batterybox between the members. The upper portions of members 25 are faced With strips of felt :27 to prevent the clamps from nia-rthe-frame. I The lamp holder which is usually secured to the front portion of the vehicle, such as the handle bar of the bicycle, comprises a box 30, and a lamp-hood 31, containing a reflector 32 and a lens 33, and which is rigidly secured to the frontwall of the box. Hood 31 is provided with a nipple 3%: which extends through the front wall of tee box and into the box. This nipple is screwthreaded conformably to the screw-thread on the base oi' an incandescent lamp The tip-contact S'Z of the lamp is insulated from. the base as usual. The flexible connections 17, 18 permit relative adjustment of the battery box and lamp-holder on the vehicle.

The box is formed of inter-fitting cupshaped members or sections 38, 39 which are rcmovably held together by a screw 30 to permit separation for access to the connec tions in the box. Aclamp 54) fixed to the section 3 is adapted to be clan'iped to the handle bar of a bicycle to support the b0 30, as shown in Fig. 1. The back Wall oi box-member 39 has riveted thereto a disk 40 ofinsulating material and a pair of sockets 41, 42 are secured in separated rela tion on this disk. E ch of these sockets has its front portion split, as at 43, to spring against and grip the reduced front end or pin 44: on the terminal 45 of one of the fieiiibie conductors 17, 16.

result of securing these sockets in the disk of insulation both will be electrically disconnected from the box. A bowed, fiat resilient conductor-strip 48 is secured between a shoulder on socket 41 and disk 40,.and is extended in position to engage the tip-contact 37 of-the member The threaded sleeve 34 in contact with thelamp base 35 serves as a conductor between the box 80 and the lamp-base. A. switch-screw 49 is threaded into and extends through the hack member 39 of the box 30 and its inner end is adapted to engage the socket The screw may he turned from the outside of the box;

When the screw 49 is'in position shown in Figs. and 4:, a ciicuit for the Operation of the lamp 36 will be established, as follows: pole 12, terminal 21, flexible conductor 17, terminal Q5 of said conductor. socket l2, screw 49, the Walls of box 30, sleeve 34, lampbase 35, the lamp filament, tip-contact 37 conductor strip -18, socket 41, terminal so of flexible conductor 18, conductor 18. terminal '21 of conductor 18 and pole ll of the battery.

When the screwlf) is turned so that its inner end will be out of contact with soc-set as, the circuit Will be interrupted.

\ The invention exemplifies a portable electric lamp which is adapted for use on vehicles and which is simple in construction-and canbe'producecl at a low cost. The pin and spring socket connections between the flexible conductors and the box prov ple and etlieient Which-permit the desirable to remove the but I detachal'zle connections 40 hoider and bmtt'ery box In use it isi'i'eqoeotlyy box or lamp from the Vehicle 01" both. 1.5% screw l9 may be tightly screwed down to provide it com nection which will not he loosened by vibmtion.

The invention is not to be understood as restricted to the details set-forth, since these may be modified within the scope of the appended claims, without departih' .ficzn the spiritand scope of the invention.

Having thus described invention. We cleim as new and desire to secure b I ters Potent, is:

1. In .11 device of the charm to be disconnected.

said holder split at their ends on the points of entrance of t nection terminals end-ado said terminals.

ln s device of the character described the combination with :1 hol of sockets in said holder split at their iOi'i'l the points of entrance of the hzitteiy connection terminals and adopted to A said terminals, and a i-esine electrical connection with om and adopted to contact w W [a one connection, the other cmxnection through the holder.

JOHN J. l

T m is. 1th Li V/itnesses H. P. DlTdDhIE-S,

siiiizson. 

